2 * Copyright 2020-2022 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * ECDH/ECDSA low level APIs are deprecated for public use, but still ok for
14 #include "internal/deprecated.h"
17 #include <openssl/core_dispatch.h>
18 #include <openssl/core_names.h>
19 #include <openssl/bn.h>
20 #include <openssl/err.h>
21 #include <openssl/objects.h>
22 #include <openssl/proverr.h>
23 #include "crypto/bn.h"
24 #include "crypto/ec.h"
25 #include "prov/implementations.h"
26 #include "prov/providercommon.h"
27 #include "prov/provider_ctx.h"
28 #include "internal/param_build_set.h"
31 # ifndef OPENSSL_NO_SM2
32 # include "crypto/sm2.h"
36 static OSSL_FUNC_keymgmt_new_fn ec_newdata;
37 static OSSL_FUNC_keymgmt_gen_init_fn ec_gen_init;
38 static OSSL_FUNC_keymgmt_gen_set_template_fn ec_gen_set_template;
39 static OSSL_FUNC_keymgmt_gen_set_params_fn ec_gen_set_params;
40 static OSSL_FUNC_keymgmt_gen_settable_params_fn ec_gen_settable_params;
41 static OSSL_FUNC_keymgmt_gen_fn ec_gen;
42 static OSSL_FUNC_keymgmt_gen_cleanup_fn ec_gen_cleanup;
43 static OSSL_FUNC_keymgmt_load_fn ec_load;
44 static OSSL_FUNC_keymgmt_free_fn ec_freedata;
45 static OSSL_FUNC_keymgmt_get_params_fn ec_get_params;
46 static OSSL_FUNC_keymgmt_gettable_params_fn ec_gettable_params;
47 static OSSL_FUNC_keymgmt_set_params_fn ec_set_params;
48 static OSSL_FUNC_keymgmt_settable_params_fn ec_settable_params;
49 static OSSL_FUNC_keymgmt_has_fn ec_has;
50 static OSSL_FUNC_keymgmt_match_fn ec_match;
51 static OSSL_FUNC_keymgmt_validate_fn ec_validate;
52 static OSSL_FUNC_keymgmt_import_fn ec_import;
53 static OSSL_FUNC_keymgmt_import_types_fn ec_import_types;
54 static OSSL_FUNC_keymgmt_export_fn ec_export;
55 static OSSL_FUNC_keymgmt_export_types_fn ec_export_types;
56 static OSSL_FUNC_keymgmt_query_operation_name_fn ec_query_operation_name;
57 static OSSL_FUNC_keymgmt_dup_fn ec_dup;
59 # ifndef OPENSSL_NO_SM2
60 static OSSL_FUNC_keymgmt_new_fn sm2_newdata;
61 static OSSL_FUNC_keymgmt_gen_init_fn sm2_gen_init;
62 static OSSL_FUNC_keymgmt_gen_fn sm2_gen;
63 static OSSL_FUNC_keymgmt_get_params_fn sm2_get_params;
64 static OSSL_FUNC_keymgmt_gettable_params_fn sm2_gettable_params;
65 static OSSL_FUNC_keymgmt_settable_params_fn sm2_settable_params;
66 static OSSL_FUNC_keymgmt_import_fn sm2_import;
67 static OSSL_FUNC_keymgmt_query_operation_name_fn sm2_query_operation_name;
68 static OSSL_FUNC_keymgmt_validate_fn sm2_validate;
72 #define EC_DEFAULT_MD "SHA256"
73 #define EC_POSSIBLE_SELECTIONS \
74 (OSSL_KEYMGMT_SELECT_KEYPAIR | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS)
75 #define SM2_DEFAULT_MD "SM3"
78 const char *ec_query_operation_name(int operation_id)
80 switch (operation_id) {
83 case OSSL_OP_SIGNATURE:
90 # ifndef OPENSSL_NO_SM2
92 const char *sm2_query_operation_name(int operation_id)
94 switch (operation_id) {
95 case OSSL_OP_SIGNATURE:
104 * Callers of key_to_params MUST make sure that domparams_to_params is also
107 * This function only exports the bare keypair, domain parameters and other
108 * parameters are exported separately.
111 int key_to_params(const EC_KEY *eckey, OSSL_PARAM_BLD *tmpl,
112 OSSL_PARAM params[], int include_private,
113 unsigned char **pub_key)
115 BIGNUM *x = NULL, *y = NULL;
116 const BIGNUM *priv_key = NULL;
117 const EC_POINT *pub_point = NULL;
118 const EC_GROUP *ecg = NULL;
119 size_t pub_key_len = 0;
121 BN_CTX *bnctx = NULL;
124 || (ecg = EC_KEY_get0_group(eckey)) == NULL)
127 priv_key = EC_KEY_get0_private_key(eckey);
128 pub_point = EC_KEY_get0_public_key(eckey);
130 if (pub_point != NULL) {
131 OSSL_PARAM *p = NULL, *px = NULL, *py = NULL;
133 * EC_POINT_point2buf() can generate random numbers in some
134 * implementations so we need to ensure we use the correct libctx.
136 bnctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eckey));
141 /* If we are doing a get then check first before decoding the point */
143 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_PUB_KEY);
144 px = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_EC_PUB_X);
145 py = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_EC_PUB_Y);
148 if (p != NULL || tmpl != NULL) {
149 /* convert pub_point to a octet string according to the SECG standard */
150 if ((pub_key_len = EC_POINT_point2buf(ecg, pub_point,
151 POINT_CONVERSION_COMPRESSED,
152 pub_key, bnctx)) == 0
153 || !ossl_param_build_set_octet_string(tmpl, p,
154 OSSL_PKEY_PARAM_PUB_KEY,
155 *pub_key, pub_key_len))
158 if (px != NULL || py != NULL) {
160 x = BN_CTX_get(bnctx);
162 y = BN_CTX_get(bnctx);
164 if (!EC_POINT_get_affine_coordinates(ecg, pub_point, x, y, bnctx))
167 && !ossl_param_build_set_bn(tmpl, px,
168 OSSL_PKEY_PARAM_EC_PUB_X, x))
171 && !ossl_param_build_set_bn(tmpl, py,
172 OSSL_PKEY_PARAM_EC_PUB_Y, y))
177 if (priv_key != NULL && include_private) {
182 * Key import/export should never leak the bit length of the secret
185 * For this reason, on export we use padded BIGNUMs with fixed length.
187 * When importing we also should make sure that, even if short lived,
188 * the newly created BIGNUM is marked with the BN_FLG_CONSTTIME flag as
189 * soon as possible, so that any processing of this BIGNUM might opt for
190 * constant time implementations in the backend.
192 * Setting the BN_FLG_CONSTTIME flag alone is never enough, we also have
193 * to preallocate the BIGNUM internal buffer to a fixed public size big
194 * enough that operations performed during the processing never trigger
195 * a realloc which would leak the size of the scalar through memory
201 * The order of the large prime subgroup of the curve is our choice for
202 * a fixed public size, as that is generally the upper bound for
203 * generating a private key in EC cryptosystems and should fit all valid
206 * For padding on export we just use the bit length of the order
207 * converted to bytes (rounding up).
209 * For preallocating the BIGNUM storage we look at the number of "words"
210 * required for the internal representation of the order, and we
211 * preallocate 2 extra "words" in case any of the subsequent processing
212 * might temporarily overflow the order length.
214 ecbits = EC_GROUP_order_bits(ecg);
217 sz = (ecbits + 7) / 8;
219 if (!ossl_param_build_set_bn_pad(tmpl, params,
220 OSSL_PKEY_PARAM_PRIV_KEY,
231 int otherparams_to_params(const EC_KEY *ec, OSSL_PARAM_BLD *tmpl,
234 int ecdh_cofactor_mode = 0, group_check = 0;
235 const char *name = NULL;
236 point_conversion_form_t format;
241 format = EC_KEY_get_conv_form(ec);
242 name = ossl_ec_pt_format_id2name((int)format);
244 && !ossl_param_build_set_utf8_string(tmpl, params,
245 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
249 group_check = EC_KEY_get_flags(ec) & EC_FLAG_CHECK_NAMED_GROUP_MASK;
250 name = ossl_ec_check_group_type_id2name(group_check);
252 && !ossl_param_build_set_utf8_string(tmpl, params,
253 OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE,
257 if ((EC_KEY_get_enc_flags(ec) & EC_PKEY_NO_PUBKEY) != 0
258 && !ossl_param_build_set_int(tmpl, params,
259 OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, 0))
263 (EC_KEY_get_flags(ec) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
264 return ossl_param_build_set_int(tmpl, params,
265 OSSL_PKEY_PARAM_USE_COFACTOR_ECDH,
270 void *ec_newdata(void *provctx)
272 if (!ossl_prov_is_running())
274 return EC_KEY_new_ex(PROV_LIBCTX_OF(provctx), NULL);
278 # ifndef OPENSSL_NO_SM2
280 void *sm2_newdata(void *provctx)
282 if (!ossl_prov_is_running())
284 return EC_KEY_new_by_curve_name_ex(PROV_LIBCTX_OF(provctx), NULL, NID_sm2);
290 void ec_freedata(void *keydata)
292 EC_KEY_free(keydata);
296 int ec_has(const void *keydata, int selection)
298 const EC_KEY *ec = keydata;
301 if (!ossl_prov_is_running() || ec == NULL)
303 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
304 return 1; /* the selection is not missing */
306 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
307 ok = ok && (EC_KEY_get0_public_key(ec) != NULL);
308 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
309 ok = ok && (EC_KEY_get0_private_key(ec) != NULL);
310 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
311 ok = ok && (EC_KEY_get0_group(ec) != NULL);
313 * We consider OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS to always be
314 * available, so no extra check is needed other than the previous one
315 * against EC_POSSIBLE_SELECTIONS.
320 static int ec_match(const void *keydata1, const void *keydata2, int selection)
322 const EC_KEY *ec1 = keydata1;
323 const EC_KEY *ec2 = keydata2;
324 const EC_GROUP *group_a = EC_KEY_get0_group(ec1);
325 const EC_GROUP *group_b = EC_KEY_get0_group(ec2);
329 if (!ossl_prov_is_running())
332 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(ec1));
336 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
337 ok = ok && group_a != NULL && group_b != NULL
338 && EC_GROUP_cmp(group_a, group_b, ctx) == 0;
339 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
342 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
343 const EC_POINT *pa = EC_KEY_get0_public_key(ec1);
344 const EC_POINT *pb = EC_KEY_get0_public_key(ec2);
346 if (pa != NULL && pb != NULL) {
347 ok = ok && EC_POINT_cmp(group_b, pa, pb, ctx) == 0;
352 && (selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) {
353 const BIGNUM *pa = EC_KEY_get0_private_key(ec1);
354 const BIGNUM *pb = EC_KEY_get0_private_key(ec2);
356 if (pa != NULL && pb != NULL) {
357 ok = ok && BN_cmp(pa, pb) == 0;
361 ok = ok && key_checked;
367 static int common_check_sm2(const EC_KEY *ec, int sm2_wanted)
369 const EC_GROUP *ecg = NULL;
372 * sm2_wanted: import the keys or domparams only on SM2 Curve
373 * !sm2_wanted: import the keys or domparams only not on SM2 Curve
375 if ((ecg = EC_KEY_get0_group(ec)) == NULL
376 || (sm2_wanted ^ (EC_GROUP_get_curve_name(ecg) == NID_sm2)))
382 int common_import(void *keydata, int selection, const OSSL_PARAM params[],
385 EC_KEY *ec = keydata;
388 if (!ossl_prov_is_running() || ec == NULL)
392 * In this implementation, we can export/import only keydata in the
393 * following combinations:
394 * - domain parameters (+optional other params)
395 * - public key with associated domain parameters (+optional other params)
396 * - private key with associated domain parameters and optional public key
397 * (+optional other params)
400 * - domain parameters must always be requested
401 * - private key must be requested alongside public key
402 * - other parameters are always optional
404 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
407 ok = ok && ossl_ec_group_fromdata(ec, params);
409 if (!common_check_sm2(ec, sm2_wanted))
412 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
413 int include_private =
414 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
416 ok = ok && ossl_ec_key_fromdata(ec, params, include_private);
418 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
419 ok = ok && ossl_ec_key_otherparams_fromdata(ec, params);
425 int ec_import(void *keydata, int selection, const OSSL_PARAM params[])
427 return common_import(keydata, selection, params, 0);
431 # ifndef OPENSSL_NO_SM2
433 int sm2_import(void *keydata, int selection, const OSSL_PARAM params[])
435 return common_import(keydata, selection, params, 1);
441 int ec_export(void *keydata, int selection, OSSL_CALLBACK *param_cb,
444 EC_KEY *ec = keydata;
445 OSSL_PARAM_BLD *tmpl = NULL;
446 OSSL_PARAM *params = NULL;
447 unsigned char *pub_key = NULL, *genbuf = NULL;
448 BN_CTX *bnctx = NULL;
451 if (!ossl_prov_is_running() || ec == NULL)
455 * In this implementation, we can export/import only keydata in the
456 * following combinations:
457 * - domain parameters (+optional other params)
458 * - public key with associated domain parameters (+optional other params)
459 * - private key with associated public key and domain parameters
460 * (+optional other params)
463 * - domain parameters must always be requested
464 * - private key must be requested alongside public key
465 * - other parameters are always optional
467 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) == 0)
469 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0
470 && (selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) == 0)
473 tmpl = OSSL_PARAM_BLD_new();
477 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
478 bnctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(ec));
484 ok = ok && ossl_ec_group_todata(EC_KEY_get0_group(ec), tmpl, NULL,
485 ossl_ec_key_get_libctx(ec),
486 ossl_ec_key_get0_propq(ec),
490 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) {
491 int include_private =
492 selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY ? 1 : 0;
494 ok = ok && key_to_params(ec, tmpl, NULL, include_private, &pub_key);
496 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
497 ok = ok && otherparams_to_params(ec, tmpl, NULL);
499 if (ok && (params = OSSL_PARAM_BLD_to_param(tmpl)) != NULL)
500 ok = param_cb(params, cbarg);
504 OSSL_PARAM_free(params);
505 OSSL_PARAM_BLD_free(tmpl);
506 OPENSSL_free(pub_key);
507 OPENSSL_free(genbuf);
513 /* IMEXPORT = IMPORT + EXPORT */
515 # define EC_IMEXPORTABLE_DOM_PARAMETERS \
516 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0), \
517 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0), \
518 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),\
519 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0), \
520 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0), \
521 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0), \
522 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0), \
523 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0), \
524 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0), \
525 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0), \
526 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0)
528 # define EC_IMEXPORTABLE_PUBLIC_KEY \
529 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0)
530 # define EC_IMEXPORTABLE_PRIVATE_KEY \
531 OSSL_PARAM_BN(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0)
532 # define EC_IMEXPORTABLE_OTHER_PARAMETERS \
533 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL), \
534 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL)
537 * Include all the possible combinations of OSSL_PARAM arrays for
538 * ec_imexport_types().
540 * They are in a separate file as it is ~100 lines of unreadable and
541 * uninteresting machine generated stuff.
543 #include "ec_kmgmt_imexport.inc"
546 const OSSL_PARAM *ec_imexport_types(int selection)
550 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
552 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0)
554 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
556 if ((selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS) != 0)
558 return ec_types[type_select];
562 const OSSL_PARAM *ec_import_types(int selection)
564 return ec_imexport_types(selection);
568 const OSSL_PARAM *ec_export_types(int selection)
570 return ec_imexport_types(selection);
573 static int ec_get_ecm_params(const EC_GROUP *group, OSSL_PARAM params[])
575 #ifdef OPENSSL_NO_EC2M
579 unsigned int k1 = 0, k2 = 0, k3 = 0;
581 const char *basis_name = NULL;
582 int fid = EC_GROUP_get_field_type(group);
584 if (fid != NID_X9_62_characteristic_two_field)
587 basis_nid = EC_GROUP_get_basis_type(group);
588 if (basis_nid == NID_X9_62_tpBasis)
589 basis_name = SN_X9_62_tpBasis;
590 else if (basis_nid == NID_X9_62_ppBasis)
591 basis_name = SN_X9_62_ppBasis;
595 m = EC_GROUP_get_degree(group);
596 if (!ossl_param_build_set_int(NULL, params, OSSL_PKEY_PARAM_EC_CHAR2_M, m)
597 || !ossl_param_build_set_utf8_string(NULL, params,
598 OSSL_PKEY_PARAM_EC_CHAR2_TYPE,
602 if (basis_nid == NID_X9_62_tpBasis) {
603 if (!EC_GROUP_get_trinomial_basis(group, &k1)
604 || !ossl_param_build_set_int(NULL, params,
605 OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS,
609 if (!EC_GROUP_get_pentanomial_basis(group, &k1, &k2, &k3)
610 || !ossl_param_build_set_int(NULL, params,
611 OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, (int)k1)
612 || !ossl_param_build_set_int(NULL, params,
613 OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, (int)k2)
614 || !ossl_param_build_set_int(NULL, params,
615 OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, (int)k3))
621 #endif /* OPENSSL_NO_EC2M */
625 int common_get_params(void *key, OSSL_PARAM params[], int sm2)
629 const EC_GROUP *ecg = NULL;
631 unsigned char *pub_key = NULL, *genbuf = NULL;
632 OSSL_LIB_CTX *libctx;
634 BN_CTX *bnctx = NULL;
636 ecg = EC_KEY_get0_group(eck);
640 libctx = ossl_ec_key_get_libctx(eck);
641 propq = ossl_ec_key_get0_propq(eck);
643 bnctx = BN_CTX_new_ex(libctx);
648 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL
649 && !OSSL_PARAM_set_int(p, ECDSA_size(eck)))
651 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL
652 && !OSSL_PARAM_set_int(p, EC_GROUP_order_bits(ecg)))
654 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL) {
655 int ecbits, sec_bits;
657 ecbits = EC_GROUP_order_bits(ecg);
660 * The following estimates are based on the values published
661 * in Table 2 of "NIST Special Publication 800-57 Part 1 Revision 4"
662 * at http://dx.doi.org/10.6028/NIST.SP.800-57pt1r4 .
664 * Note that the above reference explicitly categorizes algorithms in a
665 * discrete set of values {80, 112, 128, 192, 256}, and that it is
666 * relevant only for NIST approved Elliptic Curves, while OpenSSL
667 * applies the same logic also to other curves.
669 * Classifications produced by other standardazing bodies might differ,
670 * so the results provided for "bits of security" by this provider are
671 * to be considered merely indicative, and it is the users'
672 * responsibility to compare these values against the normative
673 * references that may be relevant for their intent and purposes.
677 else if (ecbits >= 384)
679 else if (ecbits >= 256)
681 else if (ecbits >= 224)
683 else if (ecbits >= 160)
686 sec_bits = ecbits / 2;
688 if (!OSSL_PARAM_set_int(p, sec_bits))
692 if ((p = OSSL_PARAM_locate(params,
693 OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS))
695 int explicitparams = EC_KEY_decoded_from_explicit_params(eck);
697 if (explicitparams < 0
698 || !OSSL_PARAM_set_int(p, explicitparams))
703 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
704 && !OSSL_PARAM_set_utf8_string(p, EC_DEFAULT_MD))
707 if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_DEFAULT_DIGEST)) != NULL
708 && !OSSL_PARAM_set_utf8_string(p, SM2_DEFAULT_MD))
712 /* SM2 doesn't support this PARAM */
714 p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH);
716 int ecdh_cofactor_mode = 0;
719 (EC_KEY_get_flags(eck) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0;
721 if (!OSSL_PARAM_set_int(p, ecdh_cofactor_mode))
725 if ((p = OSSL_PARAM_locate(params,
726 OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY)) != NULL) {
727 p->return_size = EC_POINT_point2oct(EC_KEY_get0_group(key),
728 EC_KEY_get0_public_key(key),
729 POINT_CONVERSION_UNCOMPRESSED,
730 p->data, p->return_size, bnctx);
731 if (p->return_size == 0)
735 ret = ec_get_ecm_params(ecg, params)
736 && ossl_ec_group_todata(ecg, NULL, params, libctx, propq, bnctx,
738 && key_to_params(eck, NULL, params, 1, &pub_key)
739 && otherparams_to_params(eck, NULL, params);
741 OPENSSL_free(genbuf);
742 OPENSSL_free(pub_key);
749 int ec_get_params(void *key, OSSL_PARAM params[])
751 return common_get_params(key, params, 0);
754 #ifndef OPENSSL_NO_EC2M
755 # define EC2M_GETTABLE_DOM_PARAMS \
756 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_M, NULL), \
757 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_CHAR2_TYPE, NULL, 0), \
758 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_TP_BASIS, NULL), \
759 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K1, NULL), \
760 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K2, NULL), \
761 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_CHAR2_PP_K3, NULL),
763 # define EC2M_GETTABLE_DOM_PARAMS
766 static const OSSL_PARAM ec_known_gettable_params[] = {
767 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
768 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
769 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
770 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
771 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
772 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS, NULL),
773 EC_IMEXPORTABLE_DOM_PARAMETERS,
774 EC2M_GETTABLE_DOM_PARAMS
775 EC_IMEXPORTABLE_PUBLIC_KEY,
776 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
777 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
778 EC_IMEXPORTABLE_PRIVATE_KEY,
779 EC_IMEXPORTABLE_OTHER_PARAMETERS,
784 const OSSL_PARAM *ec_gettable_params(void *provctx)
786 return ec_known_gettable_params;
789 static const OSSL_PARAM ec_known_settable_params[] = {
790 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
791 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
792 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
793 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
794 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
795 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_INCLUDE_PUBLIC, NULL),
796 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, NULL, 0),
801 const OSSL_PARAM *ec_settable_params(void *provctx)
803 return ec_known_settable_params;
807 int ec_set_params(void *key, const OSSL_PARAM params[])
818 if (!ossl_ec_group_set_params((EC_GROUP *)EC_KEY_get0_group(key), params))
821 p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY);
823 BN_CTX *ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(key));
827 || p->data_type != OSSL_PARAM_OCTET_STRING
828 || !EC_KEY_oct2key(key, p->data, p->data_size, ctx))
835 return ossl_ec_key_otherparams_fromdata(eck, params);
839 # ifndef OPENSSL_NO_SM2
841 int sm2_get_params(void *key, OSSL_PARAM params[])
843 return common_get_params(key, params, 1);
846 static const OSSL_PARAM sm2_known_gettable_params[] = {
847 OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL),
848 OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL),
849 OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL),
850 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, NULL, 0),
851 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
852 OSSL_PARAM_int(OSSL_PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS, NULL),
853 EC_IMEXPORTABLE_DOM_PARAMETERS,
854 EC_IMEXPORTABLE_PUBLIC_KEY,
855 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_X, NULL, 0),
856 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_PUB_Y, NULL, 0),
857 EC_IMEXPORTABLE_PRIVATE_KEY,
862 const OSSL_PARAM *sm2_gettable_params(ossl_unused void *provctx)
864 return sm2_known_gettable_params;
867 static const OSSL_PARAM sm2_known_settable_params[] = {
868 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0),
873 const OSSL_PARAM *sm2_settable_params(ossl_unused void *provctx)
875 return sm2_known_settable_params;
879 int sm2_validate(const void *keydata, int selection, int checktype)
881 const EC_KEY *eck = keydata;
885 if (!ossl_prov_is_running())
888 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
889 return 1; /* nothing to validate */
891 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eck));
895 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0)
896 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
898 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
899 if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK)
900 ok = ok && ossl_ec_key_public_check_quick(eck, ctx);
902 ok = ok && ossl_ec_key_public_check(eck, ctx);
905 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
906 ok = ok && ossl_sm2_key_private_check(eck);
908 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
909 ok = ok && ossl_ec_key_pairwise_check(eck, ctx);
918 int ec_validate(const void *keydata, int selection, int checktype)
920 const EC_KEY *eck = keydata;
924 if (!ossl_prov_is_running())
927 if ((selection & EC_POSSIBLE_SELECTIONS) == 0)
928 return 1; /* nothing to validate */
930 ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(eck));
934 if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
935 int flags = EC_KEY_get_flags(eck);
937 if ((flags & EC_FLAG_CHECK_NAMED_GROUP) != 0)
938 ok = ok && EC_GROUP_check_named_curve(EC_KEY_get0_group(eck),
939 (flags & EC_FLAG_CHECK_NAMED_GROUP_NIST) != 0, ctx);
941 ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
944 if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
945 if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK)
946 ok = ok && ossl_ec_key_public_check_quick(eck, ctx);
948 ok = ok && ossl_ec_key_public_check(eck, ctx);
951 if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0)
952 ok = ok && ossl_ec_key_private_check(eck);
954 if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR)
955 ok = ok && ossl_ec_key_pairwise_check(eck, ctx);
962 OSSL_LIB_CTX *libctx;
968 BIGNUM *p, *a, *b, *order, *cofactor;
969 unsigned char *gen, *seed;
970 size_t gen_len, seed_len;
976 static void *ec_gen_init(void *provctx, int selection,
977 const OSSL_PARAM params[])
979 OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx);
980 struct ec_gen_ctx *gctx = NULL;
982 if (!ossl_prov_is_running() || (selection & (EC_POSSIBLE_SELECTIONS)) == 0)
985 if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) {
986 gctx->libctx = libctx;
987 gctx->selection = selection;
990 if (!ec_gen_set_params(gctx, params)) {
998 # ifndef OPENSSL_NO_SM2
999 static void *sm2_gen_init(void *provctx, int selection,
1000 const OSSL_PARAM params[])
1002 struct ec_gen_ctx *gctx = ec_gen_init(provctx, selection, params);
1005 if (gctx->group_name != NULL)
1007 if ((gctx->group_name = OPENSSL_strdup("sm2")) != NULL)
1009 ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
1010 ec_gen_cleanup(gctx);
1017 static int ec_gen_set_group(void *genctx, const EC_GROUP *src)
1019 struct ec_gen_ctx *gctx = genctx;
1022 group = EC_GROUP_dup(src);
1023 if (group == NULL) {
1024 ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CURVE);
1027 EC_GROUP_free(gctx->gen_group);
1028 gctx->gen_group = group;
1032 static int ec_gen_set_template(void *genctx, void *templ)
1034 struct ec_gen_ctx *gctx = genctx;
1036 const EC_GROUP *ec_group;
1038 if (!ossl_prov_is_running() || gctx == NULL || ec == NULL)
1040 if ((ec_group = EC_KEY_get0_group(ec)) == NULL)
1042 return ec_gen_set_group(gctx, ec_group);
1045 #define COPY_INT_PARAM(params, key, val) \
1046 p = OSSL_PARAM_locate_const(params, key); \
1047 if (p != NULL && !OSSL_PARAM_get_int(p, &val)) \
1050 #define COPY_UTF8_PARAM(params, key, val) \
1051 p = OSSL_PARAM_locate_const(params, key); \
1053 if (p->data_type != OSSL_PARAM_UTF8_STRING) \
1055 OPENSSL_free(val); \
1056 val = OPENSSL_strdup(p->data); \
1061 #define COPY_OCTET_PARAM(params, key, val, len) \
1062 p = OSSL_PARAM_locate_const(params, key); \
1064 if (p->data_type != OSSL_PARAM_OCTET_STRING) \
1066 OPENSSL_free(val); \
1067 len = p->data_size; \
1068 val = OPENSSL_memdup(p->data, p->data_size); \
1073 #define COPY_BN_PARAM(params, key, bn) \
1074 p = OSSL_PARAM_locate_const(params, key); \
1078 if (bn == NULL || !OSSL_PARAM_get_BN(p, &bn)) \
1082 static int ec_gen_set_params(void *genctx, const OSSL_PARAM params[])
1085 struct ec_gen_ctx *gctx = genctx;
1086 const OSSL_PARAM *p;
1087 EC_GROUP *group = NULL;
1089 COPY_INT_PARAM(params, OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, gctx->ecdh_mode);
1091 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_GROUP_NAME, gctx->group_name);
1092 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_FIELD_TYPE, gctx->field_type);
1093 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_ENCODING, gctx->encoding);
1094 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, gctx->pt_format);
1095 COPY_UTF8_PARAM(params, OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE, gctx->group_check);
1097 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_P, gctx->p);
1098 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_A, gctx->a);
1099 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_B, gctx->b);
1100 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_ORDER, gctx->order);
1101 COPY_BN_PARAM(params, OSSL_PKEY_PARAM_EC_COFACTOR, gctx->cofactor);
1103 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_SEED, gctx->seed, gctx->seed_len);
1104 COPY_OCTET_PARAM(params, OSSL_PKEY_PARAM_EC_GENERATOR, gctx->gen,
1109 EC_GROUP_free(group);
1113 static int ec_gen_set_group_from_params(struct ec_gen_ctx *gctx)
1116 OSSL_PARAM_BLD *bld;
1117 OSSL_PARAM *params = NULL;
1118 EC_GROUP *group = NULL;
1120 bld = OSSL_PARAM_BLD_new();
1124 if (gctx->encoding != NULL
1125 && !OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_ENCODING,
1129 if (gctx->pt_format != NULL
1130 && !OSSL_PARAM_BLD_push_utf8_string(bld,
1131 OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
1132 gctx->pt_format, 0))
1135 if (gctx->group_name != NULL) {
1136 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_GROUP_NAME,
1137 gctx->group_name, 0))
1139 /* Ignore any other parameters if there is a group name */
1141 } else if (gctx->field_type != NULL) {
1142 if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_EC_FIELD_TYPE,
1143 gctx->field_type, 0))
1151 || gctx->order == NULL
1152 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_P, gctx->p)
1153 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_A, gctx->a)
1154 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_B, gctx->b)
1155 || !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_ORDER, gctx->order))
1158 if (gctx->cofactor != NULL
1159 && !OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_EC_COFACTOR,
1163 if (gctx->seed != NULL
1164 && !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_SEED,
1165 gctx->seed, gctx->seed_len))
1168 if (gctx->gen == NULL
1169 || !OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_EC_GENERATOR,
1170 gctx->gen, gctx->gen_len))
1173 params = OSSL_PARAM_BLD_to_param(bld);
1176 group = EC_GROUP_new_from_params(params, gctx->libctx, NULL);
1180 EC_GROUP_free(gctx->gen_group);
1181 gctx->gen_group = group;
1185 OSSL_PARAM_free(params);
1186 OSSL_PARAM_BLD_free(bld);
1190 static const OSSL_PARAM *ec_gen_settable_params(ossl_unused void *genctx,
1191 ossl_unused void *provctx)
1193 static OSSL_PARAM settable[] = {
1194 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0),
1195 OSSL_PARAM_int(OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, NULL),
1196 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING, NULL, 0),
1197 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, NULL, 0),
1198 OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_EC_FIELD_TYPE, NULL, 0),
1199 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_P, NULL, 0),
1200 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_A, NULL, 0),
1201 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_B, NULL, 0),
1202 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_GENERATOR, NULL, 0),
1203 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_ORDER, NULL, 0),
1204 OSSL_PARAM_BN(OSSL_PKEY_PARAM_EC_COFACTOR, NULL, 0),
1205 OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_EC_SEED, NULL, 0),
1212 static int ec_gen_assign_group(EC_KEY *ec, EC_GROUP *group)
1214 if (group == NULL) {
1215 ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
1218 return EC_KEY_set_group(ec, group) > 0;
1222 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1224 static void *ec_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1226 struct ec_gen_ctx *gctx = genctx;
1230 if (!ossl_prov_is_running()
1232 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1235 if (gctx->gen_group == NULL) {
1236 if (!ec_gen_set_group_from_params(gctx))
1239 if (gctx->encoding != NULL) {
1240 int flags = ossl_ec_encoding_name2id(gctx->encoding);
1244 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1246 if (gctx->pt_format != NULL) {
1247 int format = ossl_ec_pt_format_name2id(gctx->pt_format);
1251 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1255 /* We must always assign a group, no matter what */
1256 ret = ec_gen_assign_group(ec, gctx->gen_group);
1258 /* Whether you want it or not, you get a keypair, not just one half */
1259 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
1260 ret = ret && EC_KEY_generate_key(ec);
1262 if (gctx->ecdh_mode != -1)
1263 ret = ret && ossl_ec_set_ecdh_cofactor_mode(ec, gctx->ecdh_mode);
1265 if (gctx->group_check != NULL)
1266 ret = ret && ossl_ec_set_check_group_type_from_name(ec, gctx->group_check);
1270 /* Something went wrong, throw the key away */
1276 # ifndef OPENSSL_NO_SM2
1278 * The callback arguments (osslcb & cbarg) are not used by EC_KEY generation
1280 static void *sm2_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg)
1282 struct ec_gen_ctx *gctx = genctx;
1287 || (ec = EC_KEY_new_ex(gctx->libctx, NULL)) == NULL)
1290 if (gctx->gen_group == NULL) {
1291 if (!ec_gen_set_group_from_params(gctx))
1294 if (gctx->encoding) {
1295 int flags = ossl_ec_encoding_name2id(gctx->encoding);
1299 EC_GROUP_set_asn1_flag(gctx->gen_group, flags);
1301 if (gctx->pt_format != NULL) {
1302 int format = ossl_ec_pt_format_name2id(gctx->pt_format);
1306 EC_GROUP_set_point_conversion_form(gctx->gen_group, format);
1310 /* We must always assign a group, no matter what */
1311 ret = ec_gen_assign_group(ec, gctx->gen_group);
1313 /* Whether you want it or not, you get a keypair, not just one half */
1314 if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0)
1315 ret = ret && EC_KEY_generate_key(ec);
1320 /* Something went wrong, throw the key away */
1327 static void ec_gen_cleanup(void *genctx)
1329 struct ec_gen_ctx *gctx = genctx;
1334 EC_GROUP_free(gctx->gen_group);
1338 BN_free(gctx->order);
1339 BN_free(gctx->cofactor);
1340 OPENSSL_free(gctx->group_name);
1341 OPENSSL_free(gctx->field_type);
1342 OPENSSL_free(gctx->pt_format);
1343 OPENSSL_free(gctx->encoding);
1344 OPENSSL_free(gctx->seed);
1345 OPENSSL_free(gctx->gen);
1349 static void *common_load(const void *reference, size_t reference_sz,
1354 if (ossl_prov_is_running() && reference_sz == sizeof(ec)) {
1355 /* The contents of the reference is the address to our object */
1356 ec = *(EC_KEY **)reference;
1358 if (!common_check_sm2(ec, sm2_wanted))
1361 /* We grabbed, so we detach it */
1362 *(EC_KEY **)reference = NULL;
1368 static void *ec_load(const void *reference, size_t reference_sz)
1370 return common_load(reference, reference_sz, 0);
1374 # ifndef OPENSSL_NO_SM2
1375 static void *sm2_load(const void *reference, size_t reference_sz)
1377 return common_load(reference, reference_sz, 1);
1382 static void *ec_dup(const void *keydata_from, int selection)
1384 if (ossl_prov_is_running())
1385 return ossl_ec_key_dup(keydata_from, selection);
1389 const OSSL_DISPATCH ossl_ec_keymgmt_functions[] = {
1390 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))ec_newdata },
1391 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))ec_gen_init },
1392 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1393 (void (*)(void))ec_gen_set_template },
1394 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1395 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1396 (void (*)(void))ec_gen_settable_params },
1397 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))ec_gen },
1398 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1399 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))ec_load },
1400 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1401 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))ec_get_params },
1402 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))ec_gettable_params },
1403 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1404 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))ec_settable_params },
1405 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1406 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1407 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))ec_validate },
1408 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))ec_import },
1409 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1410 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1411 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1412 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1413 (void (*)(void))ec_query_operation_name },
1414 { OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))ec_dup },
1419 # ifndef OPENSSL_NO_SM2
1420 const OSSL_DISPATCH ossl_sm2_keymgmt_functions[] = {
1421 { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))sm2_newdata },
1422 { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))sm2_gen_init },
1423 { OSSL_FUNC_KEYMGMT_GEN_SET_TEMPLATE,
1424 (void (*)(void))ec_gen_set_template },
1425 { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ec_gen_set_params },
1426 { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS,
1427 (void (*)(void))ec_gen_settable_params },
1428 { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))sm2_gen },
1429 { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ec_gen_cleanup },
1430 { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))sm2_load },
1431 { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ec_freedata },
1432 { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))sm2_get_params },
1433 { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))sm2_gettable_params },
1434 { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))ec_set_params },
1435 { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))sm2_settable_params },
1436 { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ec_has },
1437 { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ec_match },
1438 { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))sm2_validate },
1439 { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))sm2_import },
1440 { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ec_import_types },
1441 { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ec_export },
1442 { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ec_export_types },
1443 { OSSL_FUNC_KEYMGMT_QUERY_OPERATION_NAME,
1444 (void (*)(void))sm2_query_operation_name },
1445 { OSSL_FUNC_KEYMGMT_DUP, (void (*)(void))ec_dup },